Boiler-cleaner.



N0. 63|,967. Patented Aug. 29, I899.

W. J. PLECHER.

BOILER CLEANER.

IApplication filed Dec. 3, 1898. (No Model I I l I I I l I 1 l I I I I I T I l oo'oooooooo 0000000000 00000000 00000000 JnTe 70%;

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UNITED STATES PATENT FFICE.

WILLIAM J. PLECHER, OF PEORIA, ILLINOIS.

BOILER-C LEAN ER.

SPECIFICATION forming part of Letters Patent No. 631,967, dated August 29, 1899. Application filed December 3, 1898. Serial No. 698,199. (No model.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM J PLECHER, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Boiler-Cleaners; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in boiler-cleaners by means of which a cleaning apparatus is provided; and the object of the invention is to simplify and improve the construction of the same and to render it more efficient and cer- V tain in operation.

More particularly my invention relates to an automatic boiler-cleaner designed to remove from the water the extraneous substances that may gather upon the surface of the water and convey the same into a settling-chamber or precipitator, in which the impurities are precipitated and eventually blown off, while the purified water is returned to the lower levels of the boiler.

In carrying out my invention I employ a certain novel construction, combination, and relative arrangement of parts, which willbe fully described hereinafter in connection with the drawings and finally more particularly pointed out in the appended claims.

Figure 1 is a plan view of a boiler and its mountings with my improved cleaner attached thereto. Fig. 2 is an elevation of the same; and Fig. 3 is an end elevation of the boiler, showing the relative arrangement of the pipes which convey the foul water and floating substances into the settling-chamber and the pipe for conveying the purified water back again into the boiler.

It is a well-known fact that the act of ebullition in a boiler creates a seething or surging of the water contained therein and that as soon as the water becomes heated to a certain temperature it circulates from the point of greatest heat to that of least heat, and thus continuously circulates throughout the boiler. The impurities which are separated from the water by the action of the heat follow this circulation until they reach a point upon the surface remote from the application of the heat and there accumulate in the form of mud, sludge, lime, &c. If this foreign matter is not removed, it will become more dense with time and will settle to the bottom and becoming deposited upon the tubes contained therein or upon the shell of the boiler will form a scale, caused by the continued action of the heat.

As above referred to, nearly all the impurities in the water are contained in the upper five or six inches of the water, or just above the fines during the process of steam-generation, and to the removal of these impurities and foreign matter while carried at or near the surface of the water in the boiler is my invention directed, and it is at this point of the boiler that I draw the same off to the settling-chamber.

In the drawings like letters of reference indicate the several corresponding parts in the figures. I

A refers generally to a boiler, whichmay be of the construction herein shown or of any desired style or form, and B is the mounting therefor.

C is a settling-chamber or precipitator having a longitudinal bearing with relation to the boiler and is supported on the outside thereof and adjacent thereto. The chamber 0, as I have shown it in this instance, is mounted in such a manner as to be slightly on the incline. At the forward end of the chamber is shown an elbow, (designated as C,) which connects the chamber C with an auxiliary chamber 0 which depends from the elbow in a vertical plane. The elbow O is also shown provided with a laterally-extending tubular projection c for a purpose to be described.

From the rear of the boiler and shown just above the heat-fines in the boiler and just below the water-line I provide a series of laterally-extending pipes or tubes D D D D, which are adapted to connect with the rear end of the chamber 0 through the pipes'or tubes d d d d and d d cl (1 and the elbows d d d d and d d d d Into these pipes the mud, sludge, or other foreign matter which is carried upon or near the surface of the boiler is carried by the natural force of circulation, and by reason of the number of tubes or pipes and the manner of carrying the same it is carried very rapidly into the settling-chamber, where the same mingles in one mass.

ICO

The settling-chamber being of an increased diameter greater in proportion to that of the ducts leading from the boiler, the Water is caused to flow very slowly to the auxiliary chamber. The temperature of the chamber 0 being less than that of the boiler, not only is the circulation assisted, but the cooling off of the matter (which becomes greater as it nears the forward or auxiliary chamber 0 which is continually passing therethrough as it is received from the boiler causes the mud and other'impurities having a greater specific gravity to be precipitated to the bottom of the auxiliary chamber 0 whence it may be removed or drawn off through the blow-off pipe E, suitably connected to the bottom of the same.

Connecting with the lateral projection c from the elbow I have shown a purified-water duct (represented by the pipe or duct F) and the pipe'or duct f, suitably connected therewith, and which connects with the boiler in the forward end thereof and just beneath the flues, as shown. The water, as it is purified of its impuritiessuch as mud, &c.is caused to flow off into the pipe F and from thence carried into the boiler. It will be noticed that the action of the water is continuous and is, further, automaticin its operation. Should it become necessary at any time by reason of too much sediment accumulating in the chamber 0 or the auxiliary chamber 0 to cleanse the same, I have shown provided a valve G on the pipe or duct F, which may be closed at any time, and thus close the course of the water and direct the main body of the water to flow into the auxiliary chamber 0 and by permitting the water to pass off through the duct E it will be carried more rapidly through the chamber G and the auxiliary chamber 0 which is deemed sufficient to carry ofi all foreign matter which may have accumulated therein and cleanse the same.

It will be understood that in practice various changes in the form, position, proportion, and the minor details of construction of parts may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is I 1. In a boiler-cleaning apparatus, the receptacle 0, carried adjacent to the boiler, purposed to receive the liquid from the rear of the boiler at a point just above the heat-fines the same being conducted to said receptacle through a series of small tubes extending therefrom and connecting with said receptacle, a precipitating-chamber 0 depending from said receptacle and a discharge-pipe F, suitably connected with said precipitator and leading out therefrom the same being connected with the boiler and purposed to deliver the clean water thereto at a point beneath the heat-fines, all substantially as hereinbefore described.

2. The combination with the steam-boiler A, of the settling-chamber or precipitator 0, carried in close proximity thereto, a series of pipes or tubes leading out from the rear end of the boiler and at a point immediately above the heat-fines, and communicating with the rear end of the precipitator O, the duct F, leading from the receptacle to the forward end of the boiler and at a point beneath the heat-fines, and an auxiliary chamber 0 depending from the precipitator, all substantially in the manner and for the purpose hereinbefore described.

In testimony whereof I afflx my signature in presence of two witnesses.

' WILLIAM J. PLECHER.

WVitnesses:

CHAS. W. LA PORTE, HENRY MANSFIELD. 

